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Relation between microstructure induced by oxidation and room-temperature mechanical properties of the thermally grown oxide scales on austenitic stainless steels

Pascal, Céline and Braccini, Muriel and Parry, Valérie and Fedorova, Elena and Mantel, Marc and Oquab, Djar and Monceau, Daniel Relation between microstructure induced by oxidation and room-temperature mechanical properties of the thermally grown oxide scales on austenitic stainless steels. (2017) Materials Characterization, 127. 161-170. ISSN 1044-5803

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Official URL: http://dx.doi.org/10.1016/j.matchar.2017.03.003

Abstract

The spalling/cracking behaviour, at room temperature, of thermally grown oxide scales under tensile stress was investigated using SEM in-situ tensile testing for two austenitic stainless steels with close composition except their S content. A correlation between damage patterns, microstructure, mechanical and adhesion properties of the oxide scales is proposed. The difference in microstructure evolution during oxidation between the two steels is explained in relation with the volume fraction of MnS inclusions in the substrate (i.e. S content). Although a direct effect of S content on the oxide scale adhesion is not evidenced, the metal/oxide toughness seems strongly affected by oxides features such as scale thickness, Fe content and location of internal oxides (SiO2 along the metal/scale interface or at the grain boundaries of the underneath substrate).

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original PDF of the article can be found at http://www.sciencedirect.com/science/article/pii/S1044580316310245?via%3Dihub
HAL Id:hal-01578676
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Institut polytechnique de Grenoble (FRANCE)
Other partners > Siberian Branch of the Russian Academy of Sciences - SB RAS (RUSSIA)
Other partners > Université Grenoble Alpes - UGA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Siberian Federal University (RUSSIA)
Other partners > Ugitech SA (FRANCE)
Laboratory name:
Funders:
CNRS - RFBR
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Deposited By: cirimat webmestre
Deposited On:29 Aug 2017 13:40

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